The Toilet Paper Timeline

The earth is over 5 billion years old. Life first originated in the oceans 3.4 billion years ago. The dinosaurs died out 65 million years in the past. Human recorded history stretches back 10,000 years in time.

These numbers are too large to visualize, and difficult to compare. Here’s an easy way to put time in perspective, and actually visualize different eras in the earth’s history. You’ll need a roll of toilet paper, a long hallway, and some sticky notes.

Link

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